Cost to Run a Radon Mitigation Fan Calculator

Estimate how much it costs to run a radon mitigation fan based on wattage, active runtime, and your electricity rate. Start with always-on runtime and 90% activity to reflect continuous operation.

Fast estimate No signup Updated for 2026 rates

Typical electricity cost

How much does a Radon Mitigation Fan cost to run?

Based on typical usage

A Radon Mitigation Fan typically draws about 90 watts when active, averaging around $0.01 per hour at $0.15 per kWh.

At typical use (90% active runtime over 24 hours), that's about $8.75 per month and $106.43 per year.

Hourly average $0.01
Daily $0.29
Monthly $8.75
Yearly $106.43

Based on

  • 90 watts
  • 90% active runtime over 24 hours
  • $0.15 per kWh

What affects cost most

  • Average active runtime over a full 24-hour day
  • Electricity rate in dollars per kWh
  • Accessory load, operating schedule, and duty cycle

How it works: Daily cost uses wattage, average active runtime over 24 hours, and electricity rate. Monthly uses daily × 30; yearly uses daily × 365.

Use the calculator below to estimate cost based on your own wattage, usage time, and electricity rate.

Calculator

1. Device

2. Usage

Results are estimates. Actual runtime can vary with workload, network traffic, and hardware efficiency.

Quick presets

3. Rate

Enter your values and click Calculate Cost.

How Much Electricity Does a Radon Mitigation Fan Use?

These example monthly costs show how duty cycle and settings change the recurring background cost.

Example monthly costs

  • Light Use 70% active runtime over 24 hours
    $6.80/month
  • Typical Use 90% active runtime over 24 hours
    $8.75/month
  • Heavy Use 100% active runtime over 24 hours
    $9.72/month

Get a better estimate and keep costs down

Defaults give you a starting point, but always-on equipment can look very different once you adjust active runtime and the real power draw in your setup.

What changes cost most

  • Average active runtime over a full 24-hour day
  • Electricity rate in dollars per kWh
  • Accessory load, operating schedule, and duty cycle

How to get a better estimate and lower cost

  • Replace the default electricity rate with the actual rate from your latest power bill.
  • Adjust the active runtime percentage to match how often the device is actually heating, cooling, or cycling.
  • Use a correctly sized fan for the mitigation design.
  • Inspect piping for blockages or leaks that raise fan load.
  • Maintain system seals and vent pathways.
  • Replace aging fans with efficient equivalents when needed.

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